Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Ice-Carved Shoulderplates Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Ice-Carved Shoulderplates suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Ice-Carved Shoulderplates is part of the transmog set Eternal Curator's Protectorate (Warrior, Paladin and Death Knight only). The other 16 pieces:
Blizzard numbers items as they are created, so the named items next to ID 161372 (161367 to 161377) were usually added in the same batch as Ice-Carved Shoulderplates: the same quest line, zone, vendor or reward set.